Read each note before playing, however you need to get used to not pressing any keys to hear the sound. Memorizing this will improve this aspect of your piano playing significantly; you can try it on when playing C major.

You will then have to move onto trying other keys so that you are learning across the board.
You can make this more fun by getting your friends involved to help you. To do this you can close your eyes and tell your friend to play a key. You will then have to correctly press the right key; there are also many other variations that you could try to make it easier for you.